'd upon; so taking hold on that part which was untouch'd
he easily gain'd his purpose, and carried it Home to his Lodging (for he
had contriv'd for himself a convenient place) there he kept this Fire
and added Fuel to it, admir'd it wonderfully, and tended it night and
day; at night especially, because its Light and Heat supply'd the
absence of the Sun; so that he was extreamly delighted with it, and
reckon'd it the most excellent of all those things which he had about
him. And when he observ'd that it always mov'd upwards, he perswaded
himself that, it was one of those Celestial Substances which he saw
shining in the Firmament, and he was continually trying of its power, by
throwing things into it, which he perceiv'd it operated upon and
consum'd, sometimes sooner, sometimes slower, according as the Bodies
which he put into it were more or less combustible.

Sec. 25. Amongst other things which he put in to try its strength, he once
flung in some Fish which had been thrown a-shore by the Water, and as
soon as e're he smelt the Steam, it rais'd his Appetite, so that he had
a Mind to Taste of them; which he did, and found 'em very agreeable and
from that time he began to use himself to the Eating of Flesh, and
applied himself to Fishing and Hunting till he understood those sports
very well: upon this account he admir'd his Fire more and more, because
it help'd him to several sorts of Provision which he was altogether
unacquainted with before.

Sec. 26. And now when his Affection towards it was increas'd to the highest
degree, both upon the account of its Beneficial Effects, and its
Extraordinary Power; he began to think that the Substance which was
departed from the Heart of his Mother the Roe, was, if not the very same
with it, yet at least of a Nature very much like it. He was confirm'd in
his Opinion, because he had observ'd in all Animals, that as long as
they liv'd, they were constantly warm without any Intermission, and as
constantly Cold after Death, Besides he found in himself, that there was
a greater degree of Heat by much in his Breast, near that place where he
had made the Incision in the _Roe_. This made him think that if he could
dissect any Animal alive, and look into that Ventricle which he had
found empty when he dissected his Dam the _Roe_, he might possibly find
it full of that Substance which inhabited it, and so inform himself
whether it were of the Substance with the Fire, and whether it had any
Lig